SEC Filings for Silicon Motion Technology CORP (SIMO)

Last updated: 2026-05-20 10:06 UTC | Total filings: 416

Browse the latest SEC filings and forms submitted by Silicon Motion Technology CORP (SIMO). Access annual reports, quarterly statements, and other official disclosures.

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Form Filing Date Description Link
144 May 18, 2026 - View Document
4 May 7, 2026 - View Document
144 May 1, 2026 - View Document
20-F April 30, 2026 FORM 20-F View Document
6-K April 29, 2026 6-K View Document
6-K April 24, 2026 6-K View Document
6-K April 10, 2026 6-K View Document
3 April 9, 2026 - View Document
3 April 9, 2026 - View Document
3 April 9, 2026 - View Document
3 April 9, 2026 - View Document
3 April 9, 2026 - View Document
3 April 9, 2026 - View Document
3 March 30, 2026 - View Document
3 March 27, 2026 - View Document
3 March 27, 2026 - View Document
3 March 27, 2026 - View Document
3 March 27, 2026 - View Document
3 March 27, 2026 - View Document
3 March 27, 2026 - View Document
144 Feb. 24, 2026 - View Document
6-K Feb. 4, 2026 6-K View Document
6-K Feb. 2, 2026 6-K View Document
6-K Jan. 9, 2026 6-K View Document
144 Dec. 9, 2025 - View Document
SCHEDULE 13G/A Dec. 5, 2025 - View Document
144 Nov. 10, 2025 - View Document
SCHEDULE 13G/A Nov. 5, 2025 - View Document
6-K Oct. 31, 2025 6-K View Document
6-K Oct. 27, 2025 6-K View Document
6-K Oct. 8, 2025 6-K View Document
144 Sept. 16, 2025 - View Document
144 Sept. 9, 2025 - View Document
144 Aug. 12, 2025 - View Document
SCHEDULE 13G/A Aug. 6, 2025 - View Document
6-K July 31, 2025 6-K View Document
6-K July 28, 2025 6-K View Document
6-K July 8, 2025 6-K View Document
6-K July 1, 2025 6-K View Document
144 June 25, 2025 - View Document
S-8 June 4, 2025 S-8 View Document
SD May 30, 2025 SD View Document
144 May 12, 2025 - View Document
6-K April 30, 2025 6-K View Document
20-F April 30, 2025 FORM 20-F View Document
6-K April 25, 2025 6-K View Document
6-K April 9, 2025 6-K View Document
6-K Feb. 6, 2025 6-K View Document
6-K Feb. 6, 2025 6-K View Document
6-K Jan. 24, 2025 6-K View Document
6-K Jan. 7, 2025 6-K View Document
144 Dec. 18, 2024 - View Document
144 Dec. 3, 2024 - View Document
SC 13G Nov. 12, 2024 - View Document
6-K Oct. 31, 2024 6-K View Document
6-K Oct. 28, 2024 6-K View Document
6-K Oct. 8, 2024 6-K View Document
6-K Sept. 9, 2024 6-K View Document
6-K Aug. 2, 2024 6-K View Document
6-K July 29, 2024 6-K View Document
6-K July 8, 2024 6-K View Document
144 June 21, 2024 - View Document
144 June 7, 2024 - View Document
SD May 30, 2024 SD View Document
144 May 13, 2024 - View Document
144 May 10, 2024 - View Document
144 May 8, 2024 - View Document
6-K May 3, 2024 6-K View Document
20-F April 30, 2024 FORM 20-F View Document
6-K April 29, 2024 6-K View Document
6-K April 25, 2024 6-K View Document
6-K April 9, 2024 6-K View Document
144 March 4, 2024 - View Document
144 Feb. 20, 2024 - View Document
144 Feb. 13, 2024 - View Document
6-K Feb. 7, 2024 6-K View Document
6-K Feb. 5, 2024 6-K View Document
6-K Jan. 5, 2024 6-K View Document
144 Dec. 20, 2023 - View Document
6-K Dec. 18, 2023 6-K View Document
6-K Dec. 12, 2023 6-K View Document
6-K Nov. 2, 2023 6-K View Document
6-K Oct. 31, 2023 6-K View Document
6-K Oct. 6, 2023 6-K View Document
6-K Oct. 5, 2023 6-K View Document
6-K Sept. 21, 2023 6-K View Document
144 Sept. 15, 2023 - View Document
144 Sept. 13, 2023 - View Document
6-K Aug. 17, 2023 6-K View Document
6-K Aug. 7, 2023 6-K View Document
6-K July 28, 2023 6-K View Document
6-K July 27, 2023 6-K View Document
6-K July 7, 2023 6-K View Document
6-K June 28, 2023 6-K View Document
SD May 31, 2023 SD View Document
6-K May 5, 2023 6-K View Document
20-F April 28, 2023 FORM 20-F View Document
6-K April 7, 2023 6-K View Document
SC 13G/A Feb. 14, 2023 - View Document
6-K Feb. 8, 2023 6-K View Document
6-K Jan. 5, 2023 6-K View Document
6-K Nov. 2, 2022 6-K View Document
6-K Oct. 7, 2022 6-K View Document
6-K Sept. 1, 2022 6-K View Document
6-K Aug. 31, 2022 6-K View Document
6-K July 28, 2022 6-K View Document
6-K July 26, 2022 6-K View Document
6-K July 19, 2022 6-K View Document
6-K July 13, 2022 FORM 6-K View Document
6-K July 7, 2022 6-K View Document
6-K June 28, 2022 6-K View Document
SD May 27, 2022 SD View Document
6-K May 6, 2022 6-K View Document
6-K May 5, 2022 6-K View Document
6-K May 3, 2022 6-K View Document
20-F April 25, 2022 FORM 20-F View Document
6-K April 12, 2022 6-K View Document
SC 13G/A Feb. 14, 2022 - View Document
6-K Jan. 27, 2022 6-K View Document
6-K Jan. 25, 2022 6-K View Document
6-K Jan. 10, 2022 6-K View Document
6-K Dec. 7, 2021 6-K View Document
6-K Oct. 28, 2021 6-K View Document
6-K Oct. 26, 2021 FORM 6-K View Document
6-K Oct. 8, 2021 FORM 6-K View Document
6-K July 30, 2021 6-K View Document
6-K July 27, 2021 6-K View Document
6-K July 9, 2021 6-K View Document
SD June 1, 2021 SD View Document
20-F May 12, 2021 FORM 20-F View Document
6-K May 6, 2021 6-K View Document
NT 20-F April 30, 2021 NT 20-F View Document
6-K April 27, 2021 6-K View Document
6-K April 9, 2021 6-K View Document
SC 13G/A Feb. 17, 2021 01269-0001 View Document
SC 13G/A Feb. 11, 2021 SEC SCHEDULE 13G View Document
6-K Feb. 4, 2021 FORM 6-K View Document
6-K Feb. 2, 2021 6-K View Document
6-K Jan. 8, 2021 6-K View Document
SC 13G/A Jan. 8, 2021 YIHENG13GA1SIMO View Document
SC 13G/A Dec. 8, 2020 SEC SCHEDULE 13G View Document
6-K Nov. 3, 2020 6-K View Document
6-K Oct. 27, 2020 FORM 6-K View Document
6-K Oct. 27, 2020 FORM 6-K View Document
6-K Oct. 8, 2020 FORM 6-K View Document
UPLOAD Sept. 10, 2020 - View Document
CORRESP Sept. 9, 2020 - View Document
UPLOAD Aug. 25, 2020 - View Document
CORRESP Aug. 14, 2020 - View Document
CORRESP Aug. 6, 2020 - View Document
6-K July 30, 2020 6-K View Document
6-K July 28, 2020 FORM 6-K View Document
CORRESP July 22, 2020 - View Document
UPLOAD July 9, 2020 - View Document
6-K July 8, 2020 6-K View Document
20-F June 12, 2020 FORM 20-F View Document
SD May 29, 2020 SD View Document
6-K April 29, 2020 FORM 6-K View Document
6-K April 29, 2020 6-K View Document
6-K April 28, 2020 FORM 6-K View Document
6-K April 9, 2020 FORM 6-K View Document
SC 13G April 6, 2020 SC 13G View Document
6-K March 13, 2020 FORM 6-K View Document
SC 13G/A Feb. 14, 2020 SEC SCHEDULE 13G View Document
SC 13G Feb. 14, 2020 - View Document
SC 13G/A Feb. 12, 2020 - View Document
6-K Feb. 7, 2020 FORM 6-K View Document
6-K Feb. 4, 2020 6-K View Document
6-K Jan. 8, 2020 FORM 6-K View Document
6-K Oct. 30, 2019 FORM 6-K View Document
6-K Oct. 28, 2019 6-K View Document
SC 13G/A Oct. 9, 2019 SEC SCHEDULE 13G View Document
SC 13G Oct. 8, 2019 SC 13G View Document
6-K Oct. 8, 2019 FORM 6-K View Document
6-K July 31, 2019 FORM 6-K View Document
6-K July 30, 2019 6-K View Document
6-K June 3, 2019 6-K View Document
SD May 29, 2019 FORM SD View Document
20-F May 15, 2019 FORM 20-F View Document
6-K May 3, 2019 6-K View Document
6-K April 30, 2019 6-K View Document
NT 20-F April 30, 2019 NT 20-F View Document
6-K April 10, 2019 6-K View Document
6-K March 7, 2019 6-K View Document
SC 13G Feb. 14, 2019 SC 13G View Document
SC 13G Feb. 13, 2019 SEC SCHEDULE 13G View Document
SC 13G/A Feb. 12, 2019 - View Document
SC 13G Feb. 11, 2019 SC 13G View Document
6-K Jan. 31, 2019 FORM 6-K View Document
6-K Jan. 29, 2019 6-K View Document
6-K Jan. 9, 2019 6-K View Document
6-K Nov. 23, 2018 6-K View Document
6-K Nov. 2, 2018 6-K View Document
6-K Oct. 31, 2018 6-K View Document
6-K Oct. 30, 2018 6-K View Document
6-K Oct. 9, 2018 FORM 6-K View Document
6-K Oct. 1, 2018 FORM 6-K View Document
6-K Aug. 2, 2018 FORM 6-K View Document
6-K July 31, 2018 FORM 6-K View Document
SD May 31, 2018 SD View Document
20-F April 30, 2018 FORM 20-F View Document
6-K April 27, 2018 6-K View Document
6-K April 24, 2018 FORM 6-K View Document
6-K April 10, 2018 6-K View Document
SC 13G Feb. 9, 2018 SC 13G View Document
SC 13G Feb. 9, 2018 - View Document
6-K Feb. 7, 2018 6-K View Document
6-K Feb. 6, 2018 6-K View Document
6-K Jan. 8, 2018 FORM 6-K View Document
6-K Oct. 27, 2017 6-K View Document
6-K Oct. 25, 2017 FORM 6-K View Document
6-K Oct. 10, 2017 FORM 6-K View Document
6-K Aug. 1, 2017 FORM 6-K View Document
6-K Aug. 1, 2017 FORM 6-K View Document
6-K July 10, 2017 FORM 6-K View Document
SC 13G/A July 7, 2017 - View Document
SD May 31, 2017 SD View Document
20-F/A May 2, 2017 AMENDMENT NO. 1 TO FORM 20-F View Document
6-K April 28, 2017 6-K View Document
20-F April 28, 2017 FORM 20-F View Document
6-K April 25, 2017 FORM 6-K View Document
6-K April 10, 2017 6-K View Document
SC 13G/A Feb. 6, 2017 - View Document
6-K Jan. 24, 2017 FORM 6-K View Document
6-K Jan. 24, 2017 6-K View Document
SC 13G Jan. 23, 2017 - View Document
6-K Jan. 9, 2017 FORM 6-K View Document
6-K Oct. 28, 2016 FORM 6-K View Document
6-K Oct. 24, 2016 6-K View Document
6-K Oct. 11, 2016 FORM 6-K View Document
UPLOAD Sept. 29, 2016 - View Document
CORRESP Sept. 28, 2016 - View Document
UPLOAD Sept. 16, 2016 - View Document
CORRESP Aug. 30, 2016 - View Document
SC 13G/A Aug. 9, 2016 - View Document
UPLOAD Aug. 2, 2016 - View Document
6-K July 22, 2016 FORM 6-K View Document
SD May 31, 2016 SD View Document
20-F April 29, 2016 FORM 20-F View Document
6-K April 29, 2016 FORM 6-K View Document
6-K April 8, 2016 FORM 6-K View Document
SC 13G/A Feb. 16, 2016 SCHEDULE 13G/A, #4 View Document
SC 13G Feb. 11, 2016 - View Document
6-K Jan. 29, 2016 FORM 6-K View Document
SC 13G Jan. 28, 2016 - View Document
6-K Jan. 21, 2016 FORM 6-K View Document
6-K Jan. 7, 2016 FORM 6-K View Document
6-K Nov. 3, 2015 6-K View Document
6-K Oct. 29, 2015 6-K View Document
6-K Oct. 26, 2015 6-K View Document
6-K Oct. 6, 2015 FORM 6-K View Document
6-K July 28, 2015 6-K View Document
6-K July 28, 2015 6-K View Document
6-K July 8, 2015 FORM 6-K View Document
6-K July 2, 2015 FORM 6-K View Document
S-8 June 11, 2015 S-8 View Document
SD June 1, 2015 SD View Document
20-F April 30, 2015 FORM 20-F View Document
6-K April 28, 2015 6-K View Document
6-K April 28, 2015 6-K View Document
6-K April 27, 2015 FORM 6-K View Document
6-K April 9, 2015 6-K View Document
6-K Jan. 27, 2015 FORM 6-K View Document
6-K Jan. 27, 2015 FORM 6-K View Document
SC 13G/A Jan. 9, 2015 AMENDMENT NO. 3 View Document
6-K Jan. 9, 2015 FORM 6-K View Document
6-K Jan. 7, 2015 6-K View Document
SC 13G/A Jan. 5, 2015 SCHEDULE 13G/A, #2 View Document
6-K Oct. 30, 2014 6-K View Document
6-K Oct. 15, 2014 6-K View Document
6-K Oct. 8, 2014 6-K View Document
6-K Sept. 30, 2014 6-K View Document
6-K July 29, 2014 6-K View Document
6-K July 8, 2014 6-K View Document
SD June 6, 2014 FORM SD View Document
20-F April 30, 2014 FORM 20-F View Document
6-K April 29, 2014 6-K View Document
6-K April 23, 2014 FORM 6-K View Document
SC 13G/A April 8, 2014 SCHEDULE 13G View Document
6-K April 8, 2014 6-K View Document
SC 13G April 8, 2014 SCHEDULE 13G View Document
6-K Jan. 28, 2014 6-K View Document
6-K Jan. 28, 2014 6-K View Document
6-K Jan. 7, 2014 6-K View Document
F-6 POS Dec. 5, 2013 POST EFFECTIVE AMENDMENT NO.1 TO THE FORM F-6 View Document
6-K Oct. 25, 2013 6-K View Document
6-K Oct. 7, 2013 6-K View Document
6-K Oct. 2, 2013 FORM 6-K View Document
6-K July 30, 2013 6-K View Document
6-K July 3, 2013 FORM 6-K View Document
6-K July 3, 2013 FORM 6-K View Document
20-F/A May 29, 2013 AMENDMENT NO. 1 TO FORM 20-F View Document
20-F April 30, 2013 FORM 20-F View Document
6-K April 26, 2013 FORM 6-K View Document
6-K April 24, 2013 FORM 6-K View Document
6-K April 2, 2013 FORM 6-K View Document
SC 13G/A March 14, 2013 AMENDMENT TO SCHEDULE 13G View Document
SC 13G/A Feb. 25, 2013 SIMO 13G/A View Document
SC 13G/A Feb. 14, 2013 SIMO - 13G/A View Document
6-K Feb. 5, 2013 FORM 6-K View Document
6-K Jan. 23, 2013 FORM 6-K View Document
6-K Oct. 25, 2012 FORM 6-K View Document
6-K Aug. 9, 2012 FORM 6-K View Document
6-K July 27, 2012 FORM 6-K View Document
SC 13G June 22, 2012 FORM SC 13G View Document
20-F/A May 15, 2012 AMENDMENT NO.1 TO FORM 20-F View Document
SC 13G/A May 7, 2012 SIMO - 13G/A View Document
20-F April 30, 2012 FORM 20-F View Document
6-K April 27, 2012 FORM 6-K View Document
6-K Feb. 3, 2012 FORM 6-K View Document
SC 13G/A Jan. 13, 2012 SIMO - 13G/A FILING View Document
6-K Nov. 2, 2011 FORM 6-K View Document
SC 13G Sept. 2, 2011 SIMO 13G 090211 View Document
6-K Aug. 1, 2011 FORM 6-K View Document
20-F June 30, 2011 FORM 20-F View Document
6-K May 3, 2011 FORM 6-K View Document
6-K April 29, 2011 FORM 6-K View Document
6-K April 29, 2011 FORM 6-K View Document
SC 13G/A Feb. 14, 2011 ST MSCS EXIT View Document
SC 13G/A Feb. 14, 2011 ST AMENDMENT MSCS View Document
6-K Feb. 1, 2011 CURRENT REPORT ON FORM 6-K View Document
6-K Dec. 17, 2010 CURRENT REPORT ON FORM 6-K View Document
6-K Nov. 4, 2010 REPORT OF FOREIGN PRIVATE ISSUER View Document
6-K July 30, 2010 FORM 6-K View Document
6-K July 8, 2010 CURRENT REPORT ON FORM 6-K View Document
20-F June 25, 2010 FORM 20-F View Document
6-K April 30, 2010 REPORT OF FOREIGN PRIVATE ISSUER ON FORM 6-K View Document
6-K April 16, 2010 FORM 6-K View Document
SC 13G/A Feb. 12, 2010 - View Document
SC 13G/A Feb. 12, 2010 ST-AMENDMENT-MSCS View Document
6-K Feb. 3, 2010 FORM 6-K View Document
6-K Feb. 2, 2010 FORM 6-K View Document
SC 13G/A Dec. 31, 2009 ST - AMEND - MSCS View Document
6-K Dec. 11, 2009 FORM 6-K View Document
6-K Oct. 27, 2009 FORM 6-K View Document
SC 13G/A Oct. 14, 2009 SCHEDULE 13G HOLDINGS REPORT AMENDMENT View Document
6-K Oct. 2, 2009 FORM 6-K View Document
SC 13G Sept. 4, 2009 - View Document
6-K Sept. 2, 2009 FORM 6-K View Document
S-8 Aug. 28, 2009 FORM S-8 View Document
6-K Aug. 3, 2009 FORM 6-K View Document
20-F July 14, 2009 ANNUAL REPORT ON FORM 20-F View Document
6-K July 9, 2009 FORM 6-K View Document
NT 20-F June 30, 2009 NOTIFICATION OF LATE FILING View Document
6-K June 30, 2009 REPORT OF FOREIGN PRIVATE ISSUER ON FORM 6-K View Document
6-K May 14, 2009 FORM 6-K View Document
6-K April 30, 2009 FORM 6-K View Document
SC 13G April 16, 2009 ST - INITIAL - MSCS View Document
6-K April 14, 2009 REPORT OF FOREIGN PRIVATE ISSUER ON FORM 6-K View Document
6-K April 9, 2009 FORM 6-K View Document
SC 13G/A Feb. 17, 2009 SC 13G/A View Document
6-K Feb. 6, 2009 FORM 6-K View Document
6-K Dec. 22, 2008 FORM 6-K View Document
6-K Dec. 9, 2008 FORM 6-K View Document
SC 13G/A Nov. 10, 2008 SILICON MOTION View Document
6-K Nov. 3, 2008 FORM 6-K View Document
6-K Oct. 16, 2008 FORM 6-K View Document
6-K Sept. 26, 2008 FORM 6-K View Document
6-K Aug. 18, 2008 FORM 6-K View Document
6-K July 31, 2008 FORM 6-K View Document
6-K July 23, 2008 FORM 6-K View Document
6-K July 3, 2008 FORM 6-K View Document
6-K June 23, 2008 FORM 6-K View Document
6-K May 29, 2008 REPORT OF FOREIGN PRIVATE ISSUER ON FORM 6-K View Document
UPLOAD May 23, 2008 - View Document
20-F May 12, 2008 ANNUAL REPORT ON FORM 20-F View Document
6-K May 9, 2008 FORM 6-K View Document
6-K May 6, 2008 FORM 6-K View Document
6-K April 30, 2008 FORM 6-K View Document
SC 13G March 19, 2008 SCHEDULE 13G View Document
6-K March 12, 2008 FORM 6-K View Document
SC 13G/A Feb. 14, 2008 SILICON MOTION View Document
SC 13G Jan. 24, 2008 SCHEDULE 13G HOLDINGS REPORT View Document
6-K Dec. 17, 2007 FORM 6-K View Document
CORRESP Dec. 11, 2007 - View Document
UPLOAD Nov. 19, 2007 - View Document
6-K Oct. 31, 2007 FORM 6-K View Document
CORRESP Oct. 29, 2007 - View Document
UPLOAD Oct. 18, 2007 - View Document
424B3 Oct. 9, 2007 FINAL PROSPECTUS View Document
EFFECT Oct. 9, 2007 - View Document
F-3 Oct. 1, 2007 FORM F-3 View Document
6-K Oct. 1, 2007 FORM 6-K View Document
6-K July 31, 2007 REPORT OF FOREIGN PRIVATE ISSUER ON FORM 6-K View Document
6-K July 24, 2007 FORM 6-K View Document
20-F July 2, 2007 FORM 20-F View Document
6-K April 30, 2007 FORM 6-K View Document
6-K April 27, 2007 FORM 6-K View Document
S-8 April 27, 2007 REGISTRATION STATEMENT View Document
6-K April 19, 2007 FORM 6-K View Document
6-K April 3, 2007 FORM 6-K View Document
6-K March 20, 2007 FORM 6-K View Document
SC 13G/A Feb. 14, 2007 SILICON MOTION View Document
6-K Feb. 2, 2007 FORM 6-K View Document
SC 13G Dec. 11, 2006 SILICON MOTION View Document
6-K Oct. 27, 2006 FORM 6-K View Document
6-K Oct. 4, 2006 FORM 6-K View Document
6-K Sept. 8, 2006 FORM 6-K View Document
6-K July 28, 2006 FORM 6-K View Document
20-F June 30, 2006 FORM 20-F View Document
6-K April 27, 2006 FORM 6-K View Document
6-K April 5, 2006 FORM 6-K View Document
6-K Jan. 26, 2006 FORM 6-K View Document
S-8 Jan. 23, 2006 REGISTRATION STATEMENT View Document
6-K Oct. 28, 2005 FORM 6-K View Document
6-K Aug. 1, 2005 - View Document
424B4 July 1, 2005 FINAL PROSPECTUS View Document
UPLOAD June 28, 2005 - View Document
CORRESP June 28, 2005 - View Document
CORRESP June 27, 2005 - View Document
F-1/A June 24, 2005 AMENDMENT NO. 3 TO FORM F-1 View Document
8-A12G June 23, 2005 FORM 8-A View Document
F-1/A June 15, 2005 AMENDMENT NO. 2 TO FORM F-1 View Document
F-1/A June 14, 2005 AMENDMENT NO. 1 TO FORM F-1 View Document
F-6 June 14, 2005 FORM F-6 View Document
F-1 June 9, 2005 FORM F-1 View Document

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